Edson carr robinson



No. :`||5,908.` Pat0'n8dD8G.,l3, |898.

E C RBIINSN v HILLSIDE 0R REVERSIBLE PLw. (Application med Apr. 12, 159s.)

2 lSheets-Sheet l.

(No Modeflf) /N VEN 0H Afro/mfr (No Model.)

No. 6|5,908. Patvntvd Dec. I3, |898.'

- E. c. numsou.

HILLSIDE 0R REVERSIBLE- PLOW.

- (Appliceion med Apr. 12, 189s.)

2 Sheets-Sheet 2.

A TTOHNEYS.

NITED STATES PATENT OFFICE.

EDSON CARR ROBINSON, OF OANANDAIGUA', NEW YORK, ASSIGNOR TO THE ROBINSON OHILLED PLOW COMPANY, OF SAME PLACE.

HILLSIDE OR REVERSIBLE PLOW.

SPECIFICATION forming part of Letters Patent No. 615,908, dated December 13, 1898.

Application filed April 12, 1898.

To all whom, t may concern.:

Beit known that I, EDsoN CARR ROBINSON, of Canandaigua, in the county of Ontario and State of New York, have invented a new and useful Improvement in Hillside or Reversible Blows, of Which the following is a full, clear, and exact description.

The object of my invention is to provide a simple,durable,and economic form ofjointer, the jointer being a double one and in one piece, one point being a duplicate of the other, occupying, however, a reversed position, while the moldboards are in the same horizontal plane.

Another object of the invention is to provide an effective and light reversing device for the jointer and also to provide a means whereby the jointer-standard will be inclined usually in a forwardly direction, the inclination of the standard admitting of the jointer being reversed at the front 'and at the rear of the jointer-standard, accordingto the direction of its inclination.

Another object of the invention is to provide a frog-box which will receive the pivotpost on the beam of the plow and which will obviate the present necessity of frequently removing the frog.

Another object of the invention is to improve the construction of the clevis for the plow.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be'had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of the improved hillside-plow having the improvements applied. Fig. 2 is a transverse section through the jointer-standard,taken practically on the line 2 2 of Fig. 1 and illustrating the jointer in its two positions. Fig. 3 is a section through the beam of the plow, illustrating the manner in which the jointerstandard is journaled therein. Fig. 4 is a plan view of a portion ofthe beam, drawn on an enlarged scale and illustrating particularly the construction of the reversing mech- Serial No. 677,300. (No model.)

broken away to disclose the improved frog- Fig. 6- is'a section on the line 6 6 of Fig. 7 is a detail perspective view boX. Fig. 5.

' of the frog-box disconnected from the frog.

Fig. 8 is a plan view, partly in section, of the improved form of clevis particularly adapted 6o for the plow; and Fig. 9 is a plan view of a slightly-modified form of the clevis shown in Fig. 8.

A represents the beam of the plow, B the reversible moldboard and point, and O the handles. A socket 10 is formed in or at one Side of the beam A at a point between its front and rear ends, and the said socket is shown as given a forward inclination from bottom to top. Within the socket 10 the 7o jointer-standard 11 is mounted to turn, the said jointer-standard being provided at its upper end with a mutilated gear 12, secured thereto by a set-screw 12 or a like fastening device. a jointer D. This jointer is of peculiar construction, being formed with a central lower point 13, end points 14, and concaved surfaces 15 between the points 13 and 14, while the upper edge 16 of the jointer is substantially 8o semicirc'ular or convened. The back face of the jointer may be convexed or of any desired shape; but the front face is concaved, forming two moldboards d and d', both of which are in the same horizontal plane and are dened by the central lower point 13. It will thus be observed that the j ointer, including the points and moldboards, is cast in one piece, and one point and moldboard are the exact reverse of the other, so that the im- 9o proved jointer practically combines in one casting a left-hand and a right-hand jointerpoint, but a jointer might be made to comprise a separate moldboard between two separate jointer-points, and all parts combined 9S constitute substantially the same general shape. The inclination of the standard permits the points of the jointer to be brought in proper relation to the upper edge of the point of the share and still have a downward roo inclination Whether the share be carried from the right to the left or vice versa. The stand- The standard 1l is adapted to carry 75 teeth of the mutilated gear 12.

ard 11 is preferably given the forward inclination illustrated, because when so inclined the jointer maybe turned in direction of the front, and the standard will only need to be given one-third of a turn to bring the opposite end of the moldboard in position at the reversal of the plowshare, whereas'when the jointer is reversed at the rear it would require at least two-thirds of the revolution on the part of the standard to effect a proper result.

The reversing mechanism preferably einployed consists of a quadrant 17, provided at its wider end with teeth 18, normally covered by an overhanging iiange 19, the teeth 18 of the quadrant being adapted to mesh with the A lever 21 is secured to the quadrant 17 at the rear of its pivot-point, the said point usually consisting of a stud 20, which is attached to and forms a portion of the beam A. The lever 21 is carried rearward within convenient reach of the operator of the plow, and the jointer is held in either of its two positions by causing the lever to enter between one or the other of the two sets oflugs 23 and 24 produced upon the upper portion of a bracket or a rack 22, secured t0 the beam preferably where its rearward bend commences. The lugs 23 and 24, which form locking devices for the lever, may be adjusted toward and from each other by transverse movement upon the beambracket 22, and set-screws 23 are employed for securing the lugs after adjustment. By this adjustment I am enabled to vary the two relative positions of the jointer.

It frequently happens that the frog of the plow becomes quickly worn by reason of the stud 25 at the foot of the beam-standard constantly wearing the frog as the plow is reversed. When the frog is thus injured,it is entirely useless and must be replaced by a new one. As heretofore stated, it is one of the objects of this invention to provide a remedy for this defect by providing a frogbox E. (Shown particularly in Fig. 7.) This frog-box consists of a casting or forging of suitable metal, being of somewhat triangular shape; but preferably the box consists of a substantially triangular body 26 and an arrow-like head 27, the wider face e of the body being concaved. Under this construction it will be observed that at each side of the box two inclined surfaces e and e2 are provided at different planes, connected by an inclined surface c3; but I desire it to be understood that the form of the box may be changed, if desired, as may likewise the particular form of shifting mechanism for the jointer. The box is provided at its head portion with an opening 28, which is adapted to receive the pivot-post 25 of the plowbeam standard. The frog-box is introduced into the frog E', as shown best in Figs. 5 and 6, in both of which positions the relative position of the box to the frog, the moldboard, and point is clearly shown. It is evident that when the box E becomes worn it may be disconnected from the frog after the point is removed from the frog and moldboard and substituted at little cost, thus lengthening the lifetime of the frog, which wears mostly, as stated, at its pivoted connection with the beam, also from wear against the soil on the outside.

In Figs. S and 9 I have illustrated an improved form of clevis, which consists of a body-section It and a hitch-section F. The body-section consists, as usual, of two opposing arms 29 and 30, adapted to engage with opposite sides of the plow-beam, being connected with the plow-beam by the bolt 31. The body further consists of a head 32,which is made, ordinarily, in two sections and is oblong, being provided either with a curved slot or opening 33, as shown in Fig. 8, or with an angular slot or opening 34, as shown in Fig. 9. The hitch-section F consists of two arms 36 and 37, connected by a roller-pin 38, the said roller-pin being adapted to travel in either of the slots 33 or 34. The arms 36 are properly connected with a draft ring or link 3,9.

The object of the shifting clevis, as it may be termed, is to allow the draft-point on the clevis to automatically change itself, and thereby prevent the plow from taking too much land. When plowing around a curve on a level or on a hillside, the horses tend to draw the plow toward the land, and the rollerhitch upon the improved clevis will adjust itself accordingly and allow the plow to run on a line with the furrow and not tend too much to the land. Vhen plowing straight ahead, the roller of the clevis will naturally run to the center of the slot in the head of the body.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination with a plow-beam, of a j ointer-standard m ounted to turn and inclined forwardly from bottom to top, a reversinglever arranged to swing transversely of the beam and operatively connected with the j ointer-standard,and lookin g devices adapted to be engaged by said lever and adjustable toward and from each other transversely of the beam to vary the extent of the angular movement of the jointer-standard.

2. A jointer comprising a moldboard having a point at each end, and a third point on its lower side between the end points, and adapted to reverse each end alternately with the other, each time the plow is reversed.

3. A jointer consisting of two or more portions having points with cutting edges facing in opposite directions, and a moldboard between the points common to both, and adapted to reverse each end alternately with the other, each time the plow is reversed.

4. The combination with a plow-beam of a j ointer-standard, its upper end extending forward, its lower end extending backward of a perpendicular line, a jointer attached at its IOO IIC

lower end, and a lever connected with said standard, and sets of lugs for holding said lever in its two positions, said lugs being adj ustable toward and from each other to allow Jthe cutting edges of said jointer to be varied in their two relative positions in a hillside or reversible plow.

5. The combination,with a standard mounted to rotate and inclined forwardly from bottom to top, and means, substantially as described, for working the standard, of a j ointer carried by the standard, consisting of two end points facing in opposite directions, and a moldboard between the points, common to both, the said moldboard being provided with a point at Vits under edge between the end points, the jointer being adapted to reverse each timethe plow is reversed, substantially as described.

6. In a plow, a frog-box arranged for removable connection with the frog of the plow, substantially as described.

7. In a hillside or reversible plow, the combination, with the frog ofthe plow, of afrogbox removably fitted to said frog, being adapted to receive a pivot on the plow, substantially as described.

8. In a plow, a clevis arranged in the longitudinal central plane of the ploW and consisting of a body-section provided with a slot inclined from its ends in direction of the said central plane, and a hitch-section provided with a slide or a roller arranged to travel in said slot, as and for the purpose specified.

9. A jointer constructed in one piece, consistin g of a moldboard having a point at each end, said jointer being attached to the lower end of a standard inclined forwardly from bottom to top, and adapted to reverse each end alternately with the other, each time the plow is reversed.

l0. A j ointer comprising a moldboard having a point at each end and a third point on its lower side between its end points, said jointer being attached to the lower end of a standard inclined forwardly from bottom to top, and adapted to reverse each end alternately with the other, each time the plow is reversed.

1l. A jointer consisting of two or more portions having points with cutting edges facing in opposite directions, and a moldboard between the points, common to both, said jointer being attached to the lower end of a standard inclined forwardly from bottom to top, and adapted to reverse each end alternately with the other, each time the plow is reversed.

EDSON CARR ROBINSON.

lVitnesses:

, ASA B. PRIEST,

ROYAL R. Soorr. 

